Finding the Fourth Proportional to 4,135,687.48, 5,707,192.62 and 2,300,128.12
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Solution
The fourth proportional to 4,135,687.48, 5,707,192.62 and 2,300,128.12 is: 3,174,145.60
Step by Step Solution
- Step 1: Write the proportion equation
4,135,687.48 : 5,707,192.62 = 2,300,128.12 : x - Step 2: Convert to fraction form
4,135,687.48/5,707,192.62 = 2,300,128.12/x - Step 3: Cross multiply
4,135,687.48x = 5,707,192.62 × 2,300,128.12 - Step 4: Simplify right side
4,135,687.48x = 13,127,274,231,518.47 - Step 5: Solve for x
x = 13,127,274,231,518.47/4,135,687.48 - Step 6: Final answer
x = 3,174,145.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.